The beryllium mirror segment, one of 18 that comprise the telescope’s 6.5-meter primary mirror, was delivered to Ball Aerospace from subcontractor Axsys Technologies, Inc. Each of the hexagonal shaped mirror segments is 1.3 meters in size, and weighs approximately 20 kilograms or 46 pounds.

“We are making excellent progress to meet a significant technological challenge that requires exacting, scientific precision at each stage,” said David L. Taylor, president and chief executive officer of Ball Aerospace.

One of the lightest of all metals, beryllium has a demonstrated track record of performing on space telescopes at cryogenic temperatures, needed for JWST’s infrared observations. The telescope is designed to detect objects 200 times fainter than the Hubble Space Telescope, observing the earliest formation of galaxies and galaxy clusters that followed the Big Bang. The completed 18-segment primary mirror will be 6.5 meters, which is over two-and-half times the diameter of the Hubble Space Telescope primary mirror (2.4 meters). It will weigh roughly half as much as Hubble, but nonetheless remain robust-enough to travel 940,000 miles, or four times the distance from the Earth to the Moon.

Ball Aerospace is the principal optical subcontractor for the JWST program, led by prime contractor Northrop Grumman Space Technology, under a contract from the NASA Goddard Space Flight Center, in Greenbelt, MD. Seventeen additional primary mirror segments, secondary, and tertiary mirrors, plus flight spares, will be delivered to Ball Aerospace from its beryllium mirror manufacturing team that includes Axsys, Brush Wellman, and Tinsley Laboratories. As each additional mirror is delivered to Ball Aerospace over the next four years, it will be mounted onto a lightweight, actuated strong-back assembly and undergo functional and environmental testing.

Ball Aerospace is celebrating its 50th year in business in 2006. The company began building pointing controls for military rockets in 1956, and later won a contract to build one of NASA’s first spacecraft, the Orbiting Solar Observatory. Over the years, the company has been responsible for numerous technological and scientific ‘firsts’ and now acts as a technology innovator in important national missions.

Ball Corporation is a supplier of high-quality metal and plastic packaging products and owns Ball Aerospace & Technologies Corp., which develops sensors, spacecraft, systems and components for government and commercial customers. Ball reported 2005 sales of $5.8 billion and the company employs 15,600 people worldwide.

Forward-Looking Statements
This news release contains "forward-looking" statements concerning future events and financial performance. Words such as "expects," "anticipates," "estimates" and similar expressions are intended to identify forward-looking statements. Such statements are subject to risks and uncertainties which could cause actual results to differ materially from those expressed or implied. The company undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Key risks and uncertainties are summarized in filings with the Securities and Exchange Commission, including in Exhibit 99.2 in our Form 10-K. These filings are available at our Web site and at www.sec.gov. Factors that might affect our packaging segments include fluctuation in consumer and customer demand and preferences; availability and cost of raw materials, including recent significant increases in resin, steel, aluminum and energy costs, and the ability to pass such increases on to customers; competitive packaging availability, pricing and substitution; changes in climate and weather; fruit, vegetable and fishing yields; industry productive capacity and competitive activity; failure to achieve anticipated productivity improvements or production cost reductions, including those associated with our beverage can end project; the German mandatory deposit or other restrictive packaging laws; changes in major customer or supplier contracts or loss of a major customer or supplier; changes in foreign exchange rates, tax rates and activities of foreign subsidiaries; and the effect of LIFO accounting. Factors that might affect our aerospace segment include: funding, authorization, availability and returns of government contracts; and delays, extensions and technical uncertainties affecting segment contracts. Factors that might affect the company as a whole include those listed plus: acquisitions, joint ventures or divestitures; integration of recently acquired businesses; regulatory action or laws including tax, environmental and workplace safety; governmental investigations; technological developments and innovations; goodwill impairment; antitrust, patent and other litigation; strikes; labor cost changes; rates of return projected and earned on assets of the company's defined benefit retirement plans; changes to the company's pension plans; reduced cash flow; interest rates affecting our debt; and changes to unaudited results due to statutory audits or other effects.